| Author |
Message |
    
onwatin
Visitor
| | Posted on Saturday, December 29, 2012 - 05:22 pm: | 
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I am in desperate need of a needle valve for a 4 ball Kingston Carb for my Dispro engine
Any help would be greatly appreciated
With Thanks
Norm |
puttputtputt
Member
Username: puttputtputt
Post Number: 17
Registered: 02-2009
| | Posted on Sunday, December 30, 2012 - 12:19 pm: |
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This is so easy to make; I built one for my Kingston. Stick a brass rod into a drill press or even a small electric drill. Grind it to a point while it's rotating. Thread the other end and put on a nut or knob. Solder it or pin it in place. Easy |
miro
Senior Member
Username: miro
Post Number: 646
Registered: 11-2001
| | Posted on Tuesday, January 01, 2013 - 11:00 am: |
|
The needle valve is a 1/4 in diameter rod with a fine thread. The thread is finer than a standard UNF 1/4 thread ( which is 1/4 - 28 tpi).
I'd guess it is a 32 or 36 tpi thread. My engine is about 200 km north of here - other wise I'd measure it today for you.
There are thread guages that will allow you to determine the exact tpi - most old engine guys / mechanics / machinists have at least one of these guages - see if you can find a "pal" locally and measure it.
Otherwise, I expect to "visit" my engine in the next week or so, and I'll get you the details.
miro |
miro
Senior Member
Username: miro
Post Number: 654
Registered: 11-2001
| | Posted on Tuesday, January 15, 2013 - 11:14 pm: |
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Here is a sketch with the dimensions.
I may have squashed the file size down a bit too much, but I think you can read it OK.
miro
 |
miro
Senior Member
Username: miro
Post Number: 655
Registered: 11-2001
| | Posted on Wednesday, January 16, 2013 - 12:09 pm: |
|
Here's a better version
miro
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